chore(migrations): renumber 0020/0021 -> 0021/0022 to avoid clash with berth-parity

berth-schema-parity branch already shipped its own migration 0020 (berth
schema parity: text -> numeric, +status_override_mode). Dedup's two
migrations need to land on top of that, not collide.

Renames:
  0020_unusual_azazel.sql       -> 0021_unusual_azazel.sql
  0021_magenta_madame_hydra.sql -> 0022_magenta_madame_hydra.sql
  meta/0020_snapshot.json       -> meta/0021_snapshot.json
  meta/0021_snapshot.json       -> meta/0022_snapshot.json

_journal.json idx + tag fields updated to match.

Snapshot CONTENTS remain dedup-branch state (no berths-numeric awareness).
A `pnpm drizzle-kit generate` after main merges the berth changes will
produce a consistent forward path; until then the snapshots are slightly
out-of-sync with the post-merge live schema, which is harmless because
the dev DB applies migrations forward, not from snapshots.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/db/migrations/meta/0021_snapshot.json

@@ -1,6 +1,6 @@
 {
-  "id": "9f6ae433-f075-4348-8109-3cd368344fa8",
+  "id": "e9d830fc-ec81-42ab-bea6-232dd99d20d1",
-  "prevId": "e9d830fc-ec81-42ab-bea6-232dd99d20d1",
+  "prevId": "6326a9a7-0b30-4647-bf86-b3d79e6a08bf",
   "version": "7",
   "dialect": "postgresql",
   "tables": {
@@ -1870,12 +1870,6 @@
           "primaryKey": false,
           "notNull": false
         },
-        "merged_into_client_id": {
-          "name": "merged_into_client_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false
-        },
         "created_at": {
           "name": "created_at",
           "type": "timestamp with time zone",
@@ -1963,21 +1957,6 @@
           "concurrently": false,
           "method": "btree",
           "with": {}
-        },
-        "idx_clients_merged_into": {
-          "name": "idx_clients_merged_into",
-          "columns": [
-            {
-              "expression": "merged_into_client_id",
-              "isExpression": false,
-              "asc": true,
-              "nulls": "last"
-            }
-          ],
-          "isUnique": false,
-          "concurrently": false,
-          "method": "btree",
-          "with": {}
         }
       },
       "foreignKeys": {

src/lib/db/migrations/meta/0022_snapshot.json

@@ -1,6 +1,6 @@
 {
-  "id": "e9d830fc-ec81-42ab-bea6-232dd99d20d1",
+  "id": "9f6ae433-f075-4348-8109-3cd368344fa8",
-  "prevId": "6326a9a7-0b30-4647-bf86-b3d79e6a08bf",
+  "prevId": "e9d830fc-ec81-42ab-bea6-232dd99d20d1",
   "version": "7",
   "dialect": "postgresql",
   "tables": {
@@ -1870,6 +1870,12 @@
           "primaryKey": false,
           "notNull": false
         },
+        "merged_into_client_id": {
+          "name": "merged_into_client_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false
+        },
         "created_at": {
           "name": "created_at",
           "type": "timestamp with time zone",
@@ -1957,6 +1963,21 @@
           "concurrently": false,
           "method": "btree",
           "with": {}
+        },
+        "idx_clients_merged_into": {
+          "name": "idx_clients_merged_into",
+          "columns": [
+            {
+              "expression": "merged_into_client_id",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": false,
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
         }
       },
       "foreignKeys": {

src/lib/db/migrations/meta/_journal.json

@@ -143,17 +143,17 @@
       "breakpoints": true
     },
     {
-      "idx": 20,
+      "idx": 21,
       "version": "7",
       "when": 1777811835982,
-      "tag": "0020_unusual_azazel",
+      "tag": "0021_unusual_azazel",
       "breakpoints": true
     },
     {
-      "idx": 21,
+      "idx": 22,
       "version": "7",
       "when": 1777812671833,
-      "tag": "0021_magenta_madame_hydra",
+      "tag": "0022_magenta_madame_hydra",
       "breakpoints": true
     }
   ]